Static torque up to 3920 in-lbs at 80 psi, maximum speed 1800 rpm, transmitted power up to 25 hp, continuous thermal dissipation up to 2.25 hp, bores up to 1.938". Features sealed ball bearings, and splined hub. Available in pilot mount, integral sheave, and coupling models. Optional disc and caliper brake turns some models into clutch-brakes.